3/4″ (18mm) Hydrotek Marine in 4’x8′ sheets, 13-ply. The term “Marine plywood” is synonymous with quality.While marine plywood is typically used in boat construction, architects will often specify marine grade plywood for exterior or high moisture applications, when only the highest quality panels will perform.Manufactured in accordance with the British Standard 1088. Select Keruing faces are used for both aesthetic beauty …

Marine Meranti or OkumeGRADE: BS1088 It is available in 4×8-foot sheets of 1/4, 3/8, 1/2, 5/8 and 3/4-inch thicknesses. Full Sheets Only.  Hydrotek Marine is a strong and extremely durable Red Meranti or Okume Marine Plywood with a BS1088 (British Standard) stamping. Manufactured with alternating color-matched, whole-piece cores, therefore providing a voidless ply adhering to BS1088 rules. No structural defects are …

Original Source https://www.wolstenholme.com/ B.S. 1088 : 1966 (abridged)BRITISH STANDARD SPECIFICATION FOR MARINE PLYWOOD MANUFACTURED FROM SELECTEDUNTREATED TROPICAL HARDWOODSSPECIFICATIONOrigin of TimberOnly those species, the heartwood of which is classed as Moderately Durable, Durable, or Very Durable,shall be used, and from these heart that is brittle, soft, or containing dote, shall be entirely excluded.Although the most desirable veneer would consist of heartwood …